Guillaume St-Onge

I am an Assistant Professor in the School of Electrical Engineering and Computer Science at the University of Ottawa. My research focuses on contagion dynamics, such as the spread of infectious diseases and social behaviors, and how they are mediated by complex networks. I develop models and computational methods drawing on stochastic processes, dynamical systems, network science, and Bayesian inference.

I completed an M.Sc. and Ph.D. in Physics at Université Laval as part of the Dynamica Research Lab, and I was a visiting graduate student at the Vermont Complex Systems Institute in the Joint Lab. Before joining uOttawa, I was at Northeastern University, first as a postdoc in the MOBS Lab and then as a Research Assistant Professor in the Department of Physics, with affiliations at the Roux Institute and the Network Science Institute.

Research areas

• Theory of contagion dynamics: mathematical framework for contagion on networks; branching processes and probability generating functions (see cosmo-notes); mapping of dynamical and statistical equivalences across contagion mechanisms
• Applications to infectious diseases: prediction of the spatial spread of pathogens; real-time forecasting of epidemics; optimization and inference methods for global sentinel surveillance systems; modeling and integration of wastewater surveillance data